Exercise 6-1 The Effect of Changes in Activity on Net Operating Income [LO6-1]Whirly Corporation’s contribution format income statement for the most recent month is shown below: Total Per UnitSales (10,000 units)$350,000 $35.00 Variable expenses 200,000 20.00 Contribution margin 150,000 $15.00 Fixed expenses 135,000 Net operating income$15,000 Required:(Consider each case independently): 1. What would be the revised net operating income per month if the sales volume increases by 100 units?2. What would be the revised net operating income per month if the sales volume decreases by 100 units?3. What would be the revised net operating income per month if the sales volume is 9,000 units?

Arival company manufactures fuel tanks for cars using a different production technique. the total weekly cost (in dollars) of producing x tanks is given by c(x) = 10000 +90x - 0.04x2 find the marginal cost at a production level of 500 fuel tanks per week to approximate the cost of the 501st unit (round to the nearest 2 decimal places, if needed)

How will firms solve the problem of an economic surplus a. decrease prices to the market equilibrium price b. decrease prices so they are below the market equilibrium price c.increase prices

Costco wholesale corporation operates membership warehouses selling food, appliances, consumer electronics, apparel and other household goods at 471 locations across the u.s. as well as in canada, mexico and puerto rico. as of its fiscal year-end 2005, costco had approximately 21.2 million members. selected fiscal-year information from the company's balance sheets follows. ($ millions). selected balance sheet data 2005 2004 merchandise inventories $4,015 $3,644 deferred membership income (liability) 501 454 (a) during fiscal 2005, costco collected $1,120 cash for membership fees. use the financial statement effectstemplate to record the cash collected for membership fees. (b) in 2005, costco recorded $46,347 million in merchandise costs (that is, cost of goods sold). record thistransaction in the financial statement effects template. (c) determine the value of merchandise that costco purchased during fiscal-year 2005. use the financial statementeffects template to record these merchandise purchases. assume all of costco's purchases are on credit.